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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-28 16:17:52 (GMT) |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-28 16:17:52 (GMT) |
| commit | 90890687859ea658759e653c4e70ed7e9e1a6217 (patch) | |
| tree | 9065b30bb189e16ef99b8b5a0d444558f8dc579f /net/sched/Kconfig | |
| parent | 2995bfb7855aabd493f840af361f3dd7d221caea (diff) | |
| parent | 5fadd053d9bb4345ec6f405d24db4e7eb49cf81e (diff) | |
| download | linux-fsl-qoriq-90890687859ea658759e653c4e70ed7e9e1a6217.tar.xz | |
Merge branch 'master'
Diffstat (limited to 'net/sched/Kconfig')
| -rw-r--r-- | net/sched/Kconfig | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/sched/Kconfig b/net/sched/Kconfig index 45d3bc0..81510da 100644 --- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -72,9 +72,11 @@ config NET_SCH_CLK_GETTIMEOFDAY Choose this if you need a high resolution clock source but can't use the CPU's cycle counter. +# don't allow on SMP x86 because they can have unsynchronized TSCs. +# gettimeofday is a good alternative config NET_SCH_CLK_CPU bool "CPU cycle counter" - depends on X86_TSC || X86_64 || ALPHA || SPARC64 || PPC64 || IA64 + depends on ((X86_TSC || X86_64) && !SMP) || ALPHA || SPARC64 || PPC64 || IA64 help Say Y here if you want to use the CPU's cycle counter as clock source. This is a cheap and high resolution clock source, but on some |